Grass Pollen Count in Penysarn, United Kingdom
Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Penysarn — from Sunday, November 8, 2026 (1 day ago) — not today's reading.
This reading is the forecast point for Penysarn — 2 nearby places use the same point; Penysarn is 3 km from it.
Pollen by type in Penysarn
What is the grass pollen count in Penysarn today?
The Penysarn grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Penysarn’s overall pollen count today is 14 (Low) across all types. See the full Penysarn pollen count for the overall index and every type together.
Penysarn is in Anglesey, Wales, United Kingdom. Its population is 595 (GeoNames).
Penysarn Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Sunday, November 8 | 14 | Low |
| Monday, November 9 | 20 | Low |
| Tuesday, November 10 | 19 | Low |
| Wednesday, November 11 | 18 | Low |
| Thursday, November 12 | 17 | Low |
Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Penysarn’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Penysarn’s grass pollen
The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Penysarn is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.
As regional context only — not as today’s readings — in the Atlantic West pattern, the plants that typically shape this city’s year are early hazel and alder, a spring birch and oak wave, late-spring and summer grasses, and a modest late-summer weed finish.
Plants affecting Penysarn now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Penysarn. The type summary stands: grass pollen reads 0.6 (Low) today.
In the Atlantic West pattern, the plants that typically shape this city’s year are early hazel and alder, a spring birch and oak wave, late-spring and summer grasses, and a modest late-summer weed finish — named here as regional context only, not as today’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this grass pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Grasses hold from late May into July, peaking in late spring and early summer. This month sits outside the usual grass pollen window for the Atlantic West pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No United Kingdom allergy season guide is published yet, so the seasonal context here follows the Atlantic West regional pattern.
Penysarn allergies today
Penysarn allergies today are set by the same reading as the Penysarn pollen count today: the Total Pollen Index is 14 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Penysarn allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Penysarn.
Allergies in Penysarn follow the United Kingdom calendar set out on the full Penysarn page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Penysarn before heading outdoors, the grass pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.
Read the five-day overall trend above as the Penysarn allergy forecast for the grass pollen season: it shows whether Penysarn allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.
See the full Penysarn pollen count — all types, the overall index and today’s ranking context
See how Penysarn ranks in today's pollen count rankings — the worst cities for allergies today
See Penysarn on the pollen map
Every pollen type, with photos and seasons: the pollen directory
Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).